What is the most healthy value in mm for Dot Pitch when using LCD monitor in compare with using CRT monitor?

Answer 1

The resolution of LCD monitors is set at the factory as the default. It's called Native Resolution and it's in the Monitor Manual.

You can't nor shouldn't try to change to a different resolution. If you do, you could damage to the monitor.

Want bigger fonts, Icons, etc.? Change them in Display Properties.